#include "desktopinfo.h"

#include <QProcessEnvironment>

DesktopInfo::DesktopInfo()
{
    auto e = QProcessEnvironment::systemEnvironment();
    XDG_CURRENT_DESKTOP = e.value(QStringLiteral("XDG_CURRENT_DESKTOP"));
    XDG_SESSION_TYPE = e.value(QStringLiteral("XDG_SESSION_TYPE"));
    WAYLAND_DISPLAY = e.value(QStringLiteral("WAYLAND_DISPLAY"));
    KDE_FULL_SESSION = e.value(QStringLiteral("KDE_FULL_SESSION"));
    GNOME_DESKTOP_SESSION_ID = e.value(QStringLiteral("GNOME_DESKTOP_SESSION_ID"));
    DESKTOP_SESSION = e.value(QStringLiteral("DESKTOP_SESSION"));
}

bool DesktopInfo::waylandDectected()
{
    return XDG_SESSION_TYPE == QLatin1String("wayland") ||
           WAYLAND_DISPLAY.contains(QLatin1String("wayland"), Qt::CaseInsensitive);
}

DesktopInfo::WM DesktopInfo::windowManager()
{
    DesktopInfo::WM res = DesktopInfo::OTHER;
    if (XDG_CURRENT_DESKTOP.contains(QLatin1String("GNOME"), Qt::CaseInsensitive) ||
            !GNOME_DESKTOP_SESSION_ID.isEmpty()) {
        res = DesktopInfo::GNOME;
    } else if (!KDE_FULL_SESSION.isEmpty() || DESKTOP_SESSION == QLatin1String("kde-plasma")) {
        res = DesktopInfo::KDE;
    }
    return res;
}
